Infineon Technologies XENSIV™ TCI Integrated Gas Sensor
Infineon Technologies XENSIV™ TCI Integrated Gas Sensor is designed to measure the thermal conductivity of gases, for example, hydrogen in air. This thermal conductivity sensor provides reliable detection of hydrogen (H2) gas in demanding automotive and industrial applications. The XENSIV™ TCI thermal conductivity sensor operates on the principle of TC and utilizes a full differential MEMS sensor concept. The TC is measured by heating up parts of the MEMS structures and measuring the heat transfer through the gas. The TC sensing provides the highest robustness and stability for rough automotive applications. This gas sensor is AEC-Q100 qualified for 105°C and a 15-year lifetime. The TCI sensor is ideal for H2 combustion engines, H2 refueling stations, Battery Electric Vehicles (BEVs), Energy Storage Systems (ESS), H2 electrolyzers, and stationary fuel cells.
Features
- Thermal conductivity sensing principle
- Insensitive to sensor poisoning
- Low lifetime offset drift of maximal ±0.1% H2
- Fully factory-calibrated sensor, no need for further recalibration in the field
- Firmware compensates for temperature, humidity, and pressure effects
- Hydrogen measurement range 0% H2 to 16% H2
- <100ms fast response time
- Up to ±0.34% H2 measurement accuracy
- Ultra-low power consumption, typical 112µA at 1 meas./sec
- 1Mbit/s I2C interface and 3.3V supply voltage
- AEC-Q100 automotive qualified for +105°C and a 15-years lifetime
- Qualified according to JEDEC JESD47L
Applications
- Automotive fuel cell hydrogen leakage measurement
- Automotive battery monitoring systems (thermal runaway detection)
- General industrial hydrogen leakage measurement
Block Diagram
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Publicado: 2025-07-29
| Actualizado: 2025-09-25